A slide clip member (2) includes a generally flat base (21), attachment features (23) integrally molded with the base for locking the slide clip member to adjacent support structure, and a locking arm (22) longitudinally projecting from the base. The slide clip member includes at least three protrusions (24) alternately arranged at two lateral sides of the base for horizontally attaching the slide clip member to an exterior channel (15) in an interference fit manner.